Non-destructive prediction method of creep damage and remnant life related to those under creep-fatigue interactive conditions for nickel base superalloys

被引：2

作者：

Ando, A. ^{[1
]}

Yokobori, A. Toshimitsu, Jr. ^{[1
]}

Sugiura, R. ^{[1
]}

Ohmi, T. ^{[1
]}

Ozeki, G. ^{[1
]}

Matsubara, T. ^{[2
]}

机构：

[1] Tohoku Univ, Grad Sch Engn, Sendai, Miyagi 9808579, Japan

[2] Palmeso Co Ltd, Niigata, Japan

来源：

MATERIALS AT HIGH TEMPERATURES | 2015年 / 32卷 / 03期

关键词：

Nickel base superalloy; Non-destructive prediction; Creep damage; Remnant life; Microdamage; Micro slurry-jet erosion; CRACK-GROWTH RATE; HIGH-TEMPERATURE; Q-ASTERISK; PARAMETER; BEHAVIOR;

D O I：

10.1179/0960340914Z.00000000067

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

In order to clarify the microdamage formation behaviour for high temperature brittle IN100 alloy, a polycrystalline nickel base superalloy, in situ observational test was carried out to observe creep damage formation behaviour of a notched IN100 specimen. Furthermore, the experimental findings of creep damage formation were evaluated by an original elastic-plastic creep finite element analysis. As a result, microcracks and damage forming areas were found to develop in the creep damage areas suggested by this analysis. This has resulted in the development of a non-destructive prediction method for creep damage accumulation and material's remnant life. The application of this method to the cases under creep-fatigue conditions was addressed.

引用

页码：266 / 275

页数：10